HR Series Aluminum Housed Power Resistors • • • • • • Resistances from 0.01 to 22K Ohms Power Rating 5 to 15 Watts Resistance Tolerances to ± 0.05% Low TCR: ± 20 ppm/°C Standard Non-Inductive Windings Available Integrated 18AWG Leads SPECIFICATIONS Power Rating ( W @ 25°C ) Type Resistance Range2 On Heatsink1 Free Air HR-10 10 5.0 0.01 to 12.5K HR-15 15 7.5 0.01 to 22K 1 2 Mounted on 6.0 x 6.0 x 0.05 [ 152 x 152 x 1.2 ] Aluminum Plate or Equivalent For Non-Inductive Winding, Divide Maximum Resistance by 2 Specification Value Tolerances ±0.05% to ±10% ( 1% Standard ) Temperture Coefficient* >10W : ±20ppm/°C 1W to10W : ±50ppm/°C * TCR is for Resistance Element Only, Copper Leads have TCR of +3900ppm/°C <1W : Call Factory Temperature Range -55°C to +250°C Dielectric Strength 1000 VAC Environmental Performance DR Dielectric ±0.2% + 0.05W Load Life ±1% + 0.05W Storage ±0.2% + 0.05W Moisture Resistance ±0.2% + 0.05W Thermal Shock ±0.2% + 0.05W 5X Overload ( 5s ) ±0.2% + 0.05W Shock ±0.1% + 0.05W Vibration ±0.1% + 0.05W (MIL-STD 202) Ordering Information: Part Description: Part Type - Resistance - Tolerance - TCR ( If not standard ) Example: HR-15 100 Ohm 5% For Non-Inductive Windings, insert the letter “N” ( i.e. HRN-10 ) Riedon Inc. 06/13 300 Cypress Avenue Alhambra CA 91801 www.riedon.com (626) 284-9901 (626) 284-1704 DIMENSIONS HR-10 HR-15 Power Derating Curve 120 100 Mo un Power ( % ) 80 60 Fre ted on He ats ink eA 40 ir 20 0 0 50 100 150 200 250 300 350 Ambient Temperature (°C) Riedon Inc. 06/13 300 Cypress Avenue Alhambra CA 91801 www.riedon.com (626) 284-9901 (626) 284-1704